Cynative: a cybersecurity foundation model you run yourself

Sovereign cyber AI

Defensive cyber intelligence, fully yours.

Cynative is building cybersecurity foundation models. You decide where it runs and what it is tuned on. It answers only to you.The agent framework built for it is open source: start deploying your agents today.

FrameworkOpen source · Apache-2.0 ModelIn development
I

Under your control.

Where it runs

Your cloud or air-gapped. The weights and the context stay in your perimeter.

What it knows

Your infrastructure, code and findings, as context. Tunable on your own data.

What it answers

Security work. Each answer carries its reasoning and its evidence.

The model →

II

The attacker has a frontier model. The defender needs one that is fully theirs.

Two deployment models. With a hosted frontier model, your infrastructure calls out across your perimeter to a model you do not control. With Cynative, the model runs inside your perimeter and is yours. THE FRONTIER LABS YOUR PERIMETER INFRA MODEL THEIRS THEIR PERIMETER CYNATIVE YOUR PERIMETER INFRA MODEL YOURS

The frontier labs ship models on their terms: access programs, hosted inference, weights that never leave them and training that never saw your environment.

What's ours is yours: the model runs where your infrastructure is, it's grounded in your environment and answers only to you.

Shape the model. Get it first. The design partner program is for the teams deciding what their sovereign security model has to do.

Become a design partner
III

The whole system, published.

A cyber model's results are a property of the whole system: the model, the harness around it, the policy that bounds it and the verifier that checks its findings. We publish the whole system. The threat model, the action gate, the audit log and all 45 agents are open source.

The trust boundaries in full →

IV

Ask your infrastructure anything.

An open-source agent framework for security engineers, with live, read-only access to your infrastructure. It runs the frontier model of your choice across GitHub, GitLab, AWS, GCP, Azure and Kubernetes as one system, verifies each finding against live evidence, and keeps what it reads in your environment. Point it at the model your cloud already runs and the model, the agent and the data share one account. 45 built-in agents ship in the binary; yours use the same file format.

Install · macOS & LinuxOther →
$ brew install cynative/tap/cynative
Open sourcegithub.com/cynative/cynative → No telemetry: we do not know how many teams run it, by design.
Terminal transcript, part 1: connectors initialize read-only and the agent writes its first code_execution script. Terminal transcript, part 2: the script fans out across workflows and IAM roles, and the critical issue is spotted. Terminal transcript, part 3: the verification panel, the critical finding and the remediation.
Real session · CI to cloud privilege escalationVerified finding in three minutes
V

Safe to point at production.

Read-only by construction. Each call is authorized before a credential is attached, on three layers.

The model's read requests pass through the agent's action gate, network pinning and credential scoping before reaching your infrastructure. Writes stop at the action gate. MODEL AGENT ACTION GATE FAILS CLOSED NETWORK HOST PINNED CREDENTIAL STS SCOPED INFRA READ WRITE
  • 01 · Action gate Each operation is resolved to the IAM actions it requires, from the providers' own API definitions, then authorized against a read-only policy before a credential is attached. Anything classified as a write fails closed.
  • 02 · Network Each request host is pinned to its service and region, and the resolved IP is verified before connect. The agent reaches your infrastructure and only your infrastructure.
  • 03 · Credential On AWS, assumed-role identities are re-vended through STS scoped to SecurityAudit. IAM enforces the boundary a second time.

How the boundaries are drawn →

VI

What it finds.

Built-in agents for AWS, Azure, GCP, GitHub and Kubernetes, by domain. Each one is a reviewed methodology, published in full.

Privilege escalation5 agents

Paths from each principal to administrative control, and the calls that walk them.

Network exposure5 agents

Internet paths that complete end to end, and what the identity behind each one reaches.

Data and storage exposure7 agents

Effective public and cross-account access to buckets, datastores, snapshots and resource policies.

Credentials and secrets5 agents

Long-lived keys, hardcoded secrets, exportable service account keys and vault access paths.

Supply chain and CI5 agents

Workflows that run untrusted code with credentials, unprotected branches and unpatched dependencies.

Detection and audit coverage4 agents

Regions, alarm paths and audit configurations where activity would produce no signal.

Inference exposure3 agents

Who can invoke Bedrock, Azure OpenAI and Vertex AI endpoints, and whether abuse would be recorded.

Kubernetes control plane5 agents

API server, kubelet and controller reachability, and the identities that hold cluster admin.

Hardening and resilience6 agents

Unsupported versions, unencrypted data and transport, unrecoverable resources and dangling DNS.

All 45 agents →

VII

From the blog.

September 9, 2026 · Yuri Shapira, Co-founder and CTO

Securing AI Agents on AWS: One HTTP Tool, One Action Gateway

Why Cynative gives security agents one HTTP tool, uses AWS-maintained models to follow API changes, and checks IAM actions before signing requests.

Read the post →All posts →